Organizations
- Schuylkill Canal Association, a non-governmental organization that maintains a section of historical canal in Pennsylvania
- Scottish Canoe Association
- Secular Coalition for America
- Sexual Compulsives Anonymous
- Société en commandite par actions, a type of corporation in France
- Society for Creative Anachronism, an international living history group
- Student Catholic Action, a religious student organization in the Philippines
- Student Conservation Association, a Non-Profit Conservation Service Organization
- Suez Canal Authority, a state-owned authority which owns and maintains the Suez Canal
- Supreme Council of Antiquities, the Egyptian antiquities service
- Svenska Cellulosa Aktiebolaget, a global hygiene and paper company
- Sydney Catchment Authority
- Sydney College of the Arts
- Swiss Cricket Association
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